Culinary grater



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CULINARY GRATBR.

Patented Mar. 24, l89.

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No. 448,794. Patented Mgr. l24, 1891,.

FIG. 4.

UNTTED STATES y PATENT OFFICE.

BURTON ll. 000K', OF BROOKLYMNEV YRK.

VCULINARY GRATER.

SPECIFICATION forming part of Letters `Patent No. 448,794, dated March24, 1891. Application iiled December 24, 1890. Serial No. 375,679. (Nomodel.)

To all whom 'it 771,603/ concern:

Be it known that I, BURTON H. COOK, a citizen of the United States,residing in Brooklyn, in the county of Kings and State of New York, haveinvented certain new and useful Improvements in Culinary Graters, ofwhich the following is a specification.

This invention provides an improved grater suitable for i gratingnutinegs, horse-radish, potatoes, and other vegetable or alimentarysubstances.

The object of the invention is to combine in one instrument variousgrades of grating surfaces so adapted and proportioned as to be capableof simultaneous use, therebyeffecting an economy of time in using thegrater and avoiding the necessity for a muliplicity of distinct gratersfor different purposes. For some purposes a coarse grater is requiredand for others a fine-toothed grater is needed. For some purposes thegratershould be moved at a high speed relatively to the article beinggrated and for other purposes it should be moved at a low speed. Myimproved grater comprises both ne and coarse toothed grating-surt`acesmoving relatively at high and low speeds, so that substances requiringto be grated by a coarse greater at a low speed and others requiring tobe grated by a fine grater at high speed may be simultaneously operatedupon, while those requiring to be grated by a line grater at a low speedand a coarse grater at a high speed maybe operated upon simultaneously.

My improved grater comprises a casing in which are mounted twograting-cylinders revolved from a common crank through differentialgrearing, whereby they are moved at differentspeeds. The cylinders areprovided with anysuitable form of grating-teeth, which toward one end ofeach cylinder are relatively coarse and toward the other end thereof arerelatively iine. Each grating-cylinder is of conical form and mounted onan axis so inclined that the upper side of the cylinder shall beapproximately horizontal, while the lower side is inclined at twice theangle of the axis to facilitate the discharge of the grated materialwhich falls within the cylinder. The larger end of the cylinder is madeopen or formed with openings to facilitate the discharge of thematerial, and the casing is provided with a discharge-spout at the lowerand larger end of the cylinder. The upper part of the casing is formedwith an elongated opening or hopper into which the material to be gratedmay be placed to bring it into contact with the upper or horizontalportion of the grating-cylinder, so that by holding the material inthehalf of the hopper oropening toward one end it will be coarselygrated, and in the opposite half or end portion-of the opening it willbe finely grated. By reason of the grating-cylinder `being horizontal atthe opening there is no tendencyv of the article being grated to shift`toward either end, so that its retention `against the portion of thecylinder on which it is placed is facilitated. rlhe two gratingcylindersare alternated-that is to say, although being arranged with theiraxes inparend, and their axes slope downwardly toward opposite ends of thecasing, so that the4 discharge-spouts from the respective cylinders openat opposite ends of the casing.

Figure l of the accompanying drawings is an end end elevation of myimproved grater. Fig. 2 is a verticallongitudinal section thereofthrough one of the grating-cylinders, asdenoted by the line 2 2 in Figs.l and Vlilig. 8 is a vertical transverse section on the line 3 3 in Fig.2. elevation of the two grating-cylinders removed, one of them beingshown in outline in full lines andthe other in dotted lines. 4

Let A designate the casing, which may be formed as a box of metal orother lsuitable material, divided longitudinally by a partition a intotwo compartments B B, each of these two bottoms sloping `toward oppositeends of the casing and terminating in spouts c c, discharging from theopposite ends thereof. The two grating cylinders C C are mounted onaxial shafts or arbors D D', eX- tending longitudinally of the casingand having bearings in the opposite endsthereot.

On the shaft D is fixed a gear-wheel E, meshing with a wheel F, iixedonthe shaftD. The wheel'D is of".v much larger radius than the wheel F, inorder that the grating-cylinder C shall be revolved at a higher speedthan the cylinder O. A crank Gis applied to either allel vertical planesthey are turned end for which has a rounded and sloping bottom b 6,.

Fig. t is a diagrammatic `side IOO shaft, preferably, as shown, totheshaft l), whereby by turning this crank both cylinders are revolvedsimultaneously.

Each of the grating-cylinders is in the form of a truncated hollow cone,which may be closed at its smaller end by a cap (l, being open at itslarger end, as shown best in Fig. 3, this end being supported on theshaft by arms e e, or otherwise leaving discharge-openingsff. Each ofthe cylinders is mounted with its axial shaft sufficiently inclined tobring its upper side horizontal, or approximately so, as best seen inFig. This causes the lower side to be inclined to twice the extent ot'the axis, so that its inclination becomes steep enough to facilitate thedischarge of the grated material from the interior of the cylinder,throwing it out toward its open end to the spout c. The grating-cylinderis formed of sheet metal, which is punched or struck up to constitutegrating-teeth, which may be of any suitable shape or dimensions. Thehalf of the cylinder toward one end is formed with coarse grating-teeth,and the half at the other end with rclativelyiinegrating-teeth.

The casing A is formed over each gratingcylinder, with a hopper oropening ll, of the shape shown in cross-section in Fig. 3, andextending` longitudinally the entire length, or nearly so, of the grating-cylinder, as shown in Fig. 2. An article to be grated is simply placedin this hopper and pressed against one end or the other of thegrating-cylinder to bring it into contact with the coarse or line teeththereof.

The two grating-cylinders, while both level on top and preferably at thesame height, are turned end for end and inclined in opposite directions,as shown in Fig. 4, where the full lines show the outlines of thecylinder C and the dotted lines those of the cylinder C. The materialgrated by the two cylinders is discharged at opposite ends of the casingby the two spouts c t'.

In the use of the grater whenever the crank is turned both cylindersrevolve at different speeds. An economy of time may be effected bygrating two articles simultaneously by placing one in one hopper ll,against either part of one of the cylinders, and the other in the otherhopper against the proper portion of the other cylinder. Thus, forexample, a nutmeg and horse-radish may be simultaneously grated, thenutmeg requiring to be grated line and the horse-radish coarse; or, twoarticles requiring to be grated together, and each requiring to begrated to different degrees of iineness, may be simultaneously gratedand mixed by placing them both in one of the hoppers, the one requiringcoarse grating being placed at the end for the coarse teeth of thecylinder and the other at the end for the tine teeth thereof.

My invention may be in part availed of by omitting one of thegrating-cylinders and its compartment of the casing.

Vhen desired a presser for the material to be grated may be added to thedevice. This is illustrated in its preferred form at the left in Fig.3,wherein a spring gis attached to the hopper II, and carries on itsfree..end a presser h, which it tends to move toward thegrating-cylinder C, thereby pressing thematerial (shown in dotted lines)against the cylinder and facilitating the grating operation.

I claim as my invention the following defined novel features,substantially as hereinbefore speciiied, namely:

l. In a grater, the combination of a casing having two compartments withdischargespouts from each and two grating-cylinders mounted to turn insaid compartments, a crank for turning them simultaneously, and gearingconstructed to rotate one cylinder faster than the other.

2. In a grater, the combination of a easing having two compartments withdischargespouts for the respective compartments opening` at oppositeends of the casing, two grating-cylinders mounted to turn in saidcompartments, arranged on inclined axes inclined in opposite directionsand directed downward toward the respective spouts, and a crank fordriving the cylinders.

3. In a grater, the combination, with a casing, of a grating-cylinderconsisting of a cone mounted to turn in the casing with its upper sideapproximately level, whereby its axis is inclined from thehorizontal andits lower side is inclined to twice the extent, and constructed with itslarger and lower end open, and the casing formed with an inclined bottomsloping in the same direction as the lower side of the cylinder andterminating at its lower end in a discharge-spout.

4. In a grater, the combination, with. a casing, of a grating-cylinderconsisting of a cone mounted to turn in the easing with its upper sideapproximately level, whereby its axis is inclined from the horizontal,and its lower side is inclined to twice the extent, and constructed withits larger and lower end open, said cylinder formed with relatively-tinegrating-teeth toward one end and with relativelycoarse grating-teethtoward the other end, and said casing formed with an elongated openingin its upper part exposing the upper and level portion of the cylinderand adapted to permit a substance to be grated to be pressed againsteither the coarse or fine toothed end thereof.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

BURTON 1I. COOK.

lVitnesses;

J B. DAVENPORT, R. J. SLANDORFF.

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